Which traversal method visits the root node before its children in a binary tree
Practice Questions
Q1
Which traversal method visits the root node before its children in a binary tree?
Inorder
Postorder
Preorder
Level order
Questions & Step-by-Step Solutions
Which traversal method visits the root node before its children in a binary tree?
Step 1: Understand what a binary tree is. A binary tree is a structure where each node has at most two children, referred to as the left child and the right child.
Step 2: Learn about tree traversal methods. Tree traversal is the process of visiting all the nodes in a tree in a specific order.
Step 3: Identify the different types of traversal methods. The main types are preorder, inorder, and postorder.
Step 4: Focus on preorder traversal. In preorder traversal, you visit the root node first.
Step 5: After visiting the root, you then visit the left child, followed by the right child.
Step 6: Conclude that the traversal method that visits the root node before its children is called preorder traversal.
